Controlling your computer with messy materials [#tangibles]

DIRTI for iPad, World’s first tapioca interface"You, the user, interact with your machine by moving the material around in a sand-blasted dish. Anything that you’re going to produce from within the Dirty Tangible Interface can not be 100% accurate, but it’s infinitely refined, expressive and subtle. And you can’t cancel any action or go back to a previous, default position, but you can control any graphics or sounds coming out of your machine with amazing expressivity, just like with real world instruments. Say, a violin. Not even kidding. And who wouldn’t like plunging their hands in ice cream?!" via USER STUDIO